It creeps in slowly in the dark of night, and once inside, it almost never goes away.
It's known as the Hum, a steady, droning sound that's heard in places as disparate as Taos, N.M.; Bristol, England; and Largs, Scotland.
But what causes the Hum, and why it only affects a small percentage of the population in certain areas, remain a mystery, despite a number of scientific investigations. [The Top 10 Unexplained Phenomena]
Reports started trickling in during the 1950s from people who had never heard anything unusual before; suddenly, they were bedeviled by an annoying, low-frequency humming, throbbing or rumbling sound.
The cases seem to have several factors in common: Generally, the Hum is only heard indoors, and it's louder at night than during the day. It's also more common in rural or suburban environments; reports of a hum are rare in urban areas, probably because of the steady background noise in crowded cities.
- See more at: http://www.livescience.com/38427-the-hum-mystery-taos-hum.html?utm_source=social&utm_medium=social&utm_campaign=socialtwitterls&cmpid=social_ls_514645#sthash.hUqCY6xB.dpuf
http://bit.ly/1s89WK9
It's known as the Hum, a steady, droning sound that's heard in places as disparate as Taos, N.M.; Bristol, England; and Largs, Scotland.
But what causes the Hum, and why it only affects a small percentage of the population in certain areas, remain a mystery, despite a number of scientific investigations. [The Top 10 Unexplained Phenomena]
Reports started trickling in during the 1950s from people who had never heard anything unusual before; suddenly, they were bedeviled by an annoying, low-frequency humming, throbbing or rumbling sound.
The cases seem to have several factors in common: Generally, the Hum is only heard indoors, and it's louder at night than during the day. It's also more common in rural or suburban environments; reports of a hum are rare in urban areas, probably because of the steady background noise in crowded cities.
- See more at: http://www.livescience.com/38427-the-hum-mystery-taos-hum.html?utm_source=social&utm_medium=social&utm_campaign=socialtwitterls&cmpid=social_ls_514645#sthash.hUqCY6xB.dpuf
http://bit.ly/1s89WK9